heres the thing though,samsung stock touch roms have come so far and run so smooth people are starting to use them over asop and just run a launcher over touch like you want to do.
I cant tell you how sick and tired I got with chasing asop roms and losing functions while some new roms would fix a few things you would lose something else.
I have no problem running the exynos 5 on the gs4 with a stock asop launcher and all I want is a kernel to unlock overclocking and I am all set,give me a stock touch rom rooted with a stock kernel that just has overclocking steps added and Im all set.
I did notice though, when i loaded slimbean (AOSP based) ROM on my S3 a while back, the performance was great compared to touchwiz. When i flashed back to stock, the first thought that came to my mind was "how come i thought this was the best performance?". The AOSP ROMs really fly compared to skinned and bloated ones. It also helps that the camera and everything else functioned great. Just that many touchwiz specific features were missing.
I also found after using Nexus 4 that 4.2.2 fixed what i didn't like in 4.1.1 (that was when i flashed the slimbean, now it is at 4.2.2 but i don't have a S3 lol). The stock clock app in particular went from mediocre to pretty decent and some under the hood improvements were nicer too. Hence i have warmed up to the idea of running a 4.2.2 AOSP ROM even if i lose some of the touchwiz. Time will tell though.
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I agree that the battery life on the iphone 5 is stellar
I would say that depends. Back when the jailbreak was no where in sight i got some great battery life. Now with only a handful of tweaks (activator, zephyr, auxo, folder enhancer, pwntunes, NCsettings, and iFile), i have half the battery life. Reading a PDF for an hour used to drop 15% before, now it drops 20%. The Nexus 4 at 4.2.2 when i had it, was pretty much 30 minutes to an hour of screen time less only, compared to non-jailbroken iPhone 5 where the iPhone would have killed the Nexus 4.
And that is the killer. Using an iPhone stock is so annoying for me that i refuse to go back to stock. I have done the resets/restarts/reinstalls etc in the last month and the phone still gives same battery life, seems to me if you want a more flexible device, something gotta give and perhaps that is why androids, blackberries etc are struggling with it but that is how i want to use my smartphone. So it is no where as stellar when i use my phone like i want to.
despite having a seemingly crippled SoC and battery size.....they must be doing SOMETHING right.....and I would say they likely won't move away from designing their own chips.
A6 is not crippled by any means. It is probably why i also get only 3 hours of straight gaming battery life if i play heavy titles like FIFA 13 on the iPhone which push the GPU/Processor, which shows how power hungry it can get. Playing FIFA on iPHone 4 was still a 4-4.5 hour affair, thanks to a less powerful and less power hungry processor.